ANTHRAPURPURIN

ˌan(t)thrəˈpərp(y)ərə̇n noun

( -s )

Etymology: International Scientific Vocabulary anthr- + purpurin

: an orange crystalline compound C 14 H 5 O 2 (OH) 3 found in commercial synthetic alizarin and also made separately; 1,2,7-trihydroxy-anthraquinone